Hi everyone,
Here are the meeting logs:
and the meeting pad:
Anti-censorship
···
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Next meeting: Thursday, February 19 16:00 UTC
Facilitator: cohosh
^^^(See Facilitator Queue at tail)
Weekly meetings, every Thursday at 16:00 UTC, in #tor-meeting at OFTC
(channel is logged while meetings are in progress)
This week's Facilitator:meskio
== Goal of this meeting ==
Weekly check-in about the status of anti-censorship work at Tor.
Coordinate collaboration between people/teams on anti-censorship at the Tor Project and Tor community.
== Links to Useful documents ==
Our anti-censorship roadmap:
Roadmap:Issue Boards · Issues by Assignee · Boards · Anti-censorship · GitLab
The anti-censorship team's wiki page:
Home · Wiki · The Tor Project / Anti-censorship / Team · GitLab
Past meeting notes can be found at:
Tickets that need reviews: from projects, we are working on:
All needs review tickets:
Merge requests · Anti-censorship · GitLab
Project 158 <-- meskio working on it
Issues · Anti-censorship · GitLab
== Announcements ==
FOCI is today! https://foci.community/
== Discussion ==
Go version bump to v1.24 for snowflake?
we are keeping support for go 1.22 because TB needs this version to support an old version of OSX
snowflake breaks support for go 1.22 with the latest version of kcp
cohosh will roll back kcp and make a release to update snowflake in TB
Certificate Issues in Rust-based QUIC Pluggable Transport (UAT) and Future Plans
[Proposal] Rust-based QUIC Pluggable Transport(UAT) - #4 by unic3rn
GitHub - yo-4m/UAT: UDP Adaptive Transport for Tor
== Actions ==
== Interesting links ==
https://nordvpn.com/blog/nordwhisper-protocol/ 2025
== Reading group ==
We will discuss "" on
Questions to ask and goals to have:
What aspects of the paper are questionable?
Are there immediate actions we can take based on this work?
Are there long-term actions we can take based on this work?
Is there future work that we want to call out in hopes that others will pick it up?
Next in the Reading Group Queue:
== Updates ==
Name:
This week:
- What you worked on this week.
Next week:
- What you are planning to work on next week.
Help with:
- Something you need help with.
cecylia (cohosh): 2026-02-19
Last week:
- worked on snowflake broker proxy pool refactor (snowflake!663)
- updated reading group wiki page
- Anti censorship reading group · Wiki · The Tor Project / Anti-censorship / Team · GitLab
- read some FOCI papers
Next week:
- roll back KCP version
- research snowflake enumeration attacks (snowflake#40396)
- implement proxy fairness proposal
- follow up on snowflake rendezvous failures (snowflake#40447)
- revisit conjure integration with lyrebird
- take a look at potential snowflake orbot bug
- [BUG] 20% CPU overhead in kindness mode · Issue #1183 · guardianproject/orbot-android · GitHub
dcf: 2026-02-19
Last week:
Next week:
- see about upgrading tor on the snowflake-02 bridge upgrade tor in snowflake bridges to 0.4.8.22 (#40511) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- open issue to have snowflake-client log whenever KCPInErrors is nonzero Deploy snowflake-server for QueuePacketConn buffer reuse fix (#40260) (#40262) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
Help with:
meskio: 2026-02-19
Last week:
- PT bridges are also distributed as vanilla (rdsys#291)
- merge and deploy moat-shim with cert reload fix (team#172)
- try and fail to add a CI test for building snowflake client with go 1.22 (snowflake#40490)
- investigate Tor Browser problem switching from snowflake to obfs4 (tor-browser#44624)
Next week:
- PT bridges are also distributed as vanilla (rdsys#291)
Shelikhoo: 2026-02-19
Last Week:
- [Testing] Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (cont.)( Draft: Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (!315) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab ) testing environment setup/research
- Merge request Reviews
- Vantage point maintaince
- Expore DNS tunneling options(Expore DNS tunneling options (#173) · Issues · The Tor Project / Anti-censorship / Team · GitLab)
- [Merge Request Done]fix incorrect format for capacity option in README (fix incorrect format for capacity option in README (!660) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab)
Next (working) Week/TODO:
- Merge request reviews
- [Deployment]Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (cont.)( Draft: Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (!315) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab ) Building custom Tor Browser with patch applied
- MR Review
- Design experment for internet shutdown
- Vantage point maintaince
- Expore DNS tunneling options(Expore DNS tunneling options (#173) · Issues · The Tor Project / Anti-censorship / Team · GitLab)
- - fix containrrr/watchtower is no longer maintained (containrrr/watchtower is no longer maintained (#40505) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab)
onyinyang: 2026-02-19
Last week(s):
-Completed https://gitlab.torproject.org/tpo/anti-censorship/rdsys/-/issues/257#note_3322645
- Working on https distributor language selector HTTPS distributor is missing a language selector menu (#196) · Issues · The Tor Project / Anti-censorship / rdsys · GitLab
Next week:
- Continue work on rdsys#196
- Continue Investigating rdsys#248 i.e., why dysfunctional webtunnel bridges are being distributed
- Troubleshooting conjure not connecting in China
- waiting for more information from conjure authors/maintainers
Switch back to some of these:
As time allows:
- Lox still seems to be filling up the disk on the rdsys-test server despite changes made to delete old entries, look into what's going wrong
Blog post for conjure: Set up a more permanent Conjure bridge (#46) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / conjure · GitLab
- review Tor browser Lox integration Bug 43096: Move to Rust for the Lox integration (!1300) · Merge requests · The Tor Project / Applications / Tor Browser · GitLab
- add TTL cache to lox MR for duplicate responses:
- Work on outstanding milestone issues:
- key rotation automation
Later:
pending decision on abandoning lox wasm in favour of some kind of FFI? Consider dropping Lox's WASM (#43096) · Issues · The Tor Project / Applications / Tor Browser · GitLab):
- add pref to handle timing for pubkey checks in Tor browser
- add trusted invitation logic to tor browser integration:
- improve metrics collection/think about how to show Lox is working/valuable
- sketch out Lox blog post/usage notes for forum
(long term things were discussed at the meeting!):
- brainstorming grouping strategies for Lox buckets (of bridges) and gathering context on how types of bridges are distributed/use in practice
Question: What makes a bridge usable for a given user, and how can we encode that to best ensure we're getting the most appropriate resources to people?
1. Are there some obvious grouping strategies that we can already consider?
e.g., by PT, by bandwidth (lower bandwidth bridges sacrificed to open-invitation buckets?), by locale (to be matched with a requesting user's geoip or something?)
2. Does it make sense to group 3 bridges/bucket, so trusted users have access to 3 bridges (and untrusted users have access to 1)? More? Less?
theodorsm: 2026-02-19
Last weeks:
- Bumping pion stack version with backport: Sign in · GitLab
- Implementing DTLS 1.3 in pion
Next weeks:
- Implementing DTLS 1.3 in pion
Help with:
-
Facilitator Queue:
cohosh onyinyang shelikhoo meskio
1. First available staff in the Facilitator Queue will be the facilitator for the meeting
2. After facilitating the meeting, the facilitator will be moved to the tail of the queue
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